Sigdel, A., Sakai, T., Ulak, P. D., Gajurel, A. P., & Upreti, B. N. (2011). Lithostratigraphy of the Silwalik Group, Karnali River section, far-west Nepal Himalaya. Journal of Nepal Geological Society, 43, 83–101. https://doi.org/10.3126/jngs.v43i0.24901